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Finding the Fourth Proportional to 358,117.92, 537,238.08 and 147,640.80

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Solution

The fourth proportional to 358,117.92, 537,238.08 and 147,640.80 is: 221,486.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,117.92 : 537,238.08 = 147,640.80 : x
  2. Step 2: Convert to fraction form
    358,117.92/537,238.08 = 147,640.80/x
  3. Step 3: Cross multiply
    358,117.92x = 537,238.08 × 147,640.80
  4. Step 4: Simplify right side
    358,117.92x = 79,318,259,921.66
  5. Step 5: Solve for x
    x = 79,318,259,921.66/358,117.92
  6. Step 6: Final answer
    x = 221,486.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.